DC/DC Converters. OKR-T-1.5-W12-C Datasheet

OKR-T-1.5-W12-C Converters. Datasheet pdf. Equivalent


Murata OKR-T-1.5-W12-C
www.murata-ps.com
OKR-T/1.5-W12-C
Adjustable Output 1.5-Amp SIP-mount DC/DC Converters
Typical unit
FEATURES
600 KHz operation
4.5-14 Vdc input voltage range
Programmable output voltage from 0.591-6.0 VDC
High power conversion efficiency at 93%
Outstanding thermal derating performance
Over temperature and over current protection
On/Off control
SIP,0.41 x 0.40 x 0.24 inches (10.4 x 10.16 x 6.1 mm)
Certified to UL/EN/IEC 60950-1 safety standards,
2nd edition
RoHS-6 hazardous substance compliance
PRODUCT OVERVIEW
The OKR-T/1.5-W12-C is a miniature SIP non-isolated Point-of-Load (PoL) DC/DC power converter
measuring only 0.41 x 0.40 x 0.24 inches (10.4 x 10.16 x 6.1 mm). The wide input range is 4.5 to 14 Volts
DC. Based on 600 KHz synchronous buck topology, the high power conversion efficient Point of Load (PoL)
module features programmable output voltage and On/Off control, under voltage lock out (UVLO), overcur-
rent and over temperature protections. These units are certified to UL/EN/ IEC 60950-1 safety standards
(2nd edition) and RoHS-6 hazardous substance compliance.
F1
External
DC
Power
Source
Rp
Q1
+Vin
On/Off
Control
Figure 1. Connection Diagram
Controller
t4XJUDIJOH
t'JMUFST
t$VSSFOU4FOTF
Reference and
Error Amplifier
Common
+Vout
Trim
Common
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_OKR-T/1.5-W12-C.A03 Page 1 of 16


OKR-T-1.5-W12-C Datasheet
Recommendation OKR-T-1.5-W12-C Datasheet
Part OKR-T-1.5-W12-C
Description Adjustable Output 1.5-Amp SIP-mount DC/DC Converters
Feature OKR-T-1.5-W12-C; www.murata-ps.com OKR-T/1.5-W12-C Adjustable Output 1.5-Amp SIP-mount DC/DC Converters Typical uni.
Manufacture Murata
Datasheet
Download OKR-T-1.5-W12-C Datasheet




Murata OKR-T-1.5-W12-C
OKR-T/1.5-W12-C
Adjustable Output 1.5-Amp SIP-mount DC/DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output
Input
Root Model
IOUT R/N (mVp-p) Regulation (Max.)
IIN, IIN,
VOUT (Amps Power
VIN Nom. Range no load full load
(Volts) max) (Watts) Max.
Line Load (Volts) (Volts) (mA) (Amps)
Efficiency
Min. Typ.
OKR-T/1.5-W12-C 0.591-6 1.5 7.5
25 ±0.3% ±0.5% 12 4.5-14 80 0.672 91% 93%
Dimensions (Inches)
0.41x0.40x0.24
For Vout ≥ 3.3V, Vin should be ≥ (Vout ÷ 0.85) + 0.5V.
All specifications are at nominal line voltage, Vout=nominal (5V for W12 models) and full load, +25°C unless
otherwise noted.
Ripple and Noise (R/N) is shown at Vout=1V. See specs for details.
PART NUMBER STRUCTURE
OK R - T / 1.5 - W12 - C
Okami Non-isolated PoL
SIP-Mount
RoHS Hazardous
Substance Compliance
C = RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder)
Wide Input Voltage Range
W12 = 4.5 – 14 Volts
Output Voltage Range
T = Trimmable, 0.591-6 Volts
Maximum Rated Output
Current in Amps
Product Label
Because of the small size of these products, the product label contains a
character-reduced code to indicate the model number and manufacturing date
code. Not all items on the label are always used. Please note that the label dif-
fers from the product photograph on page 1. Here is the layout of the label:
Mfg.
XXXXXX
Product code
date YMDX Rev. Revision level
code
Figure 2. Label Artwork Layout
The label contains three rows of information:
First row – Murata Power Solutions logo
Second row – Model number product code (see table)
Third row – Manufacturing date code and revision level
Model Number
OKR-T/1.5-W12-C
Product Code
54733
The manufacturing date code is four characters:
First character – Last digit of manufacturing year, example 2009
Second character – Month code (1 through 9 = Jan-Sep;
O, N, D = Oct, Nov, Dec)
Third character – Day code (1 through 9 = 1 to 9, 10 = 0 and
11 through 31 = A through Z)
Fourth character – Manufacturing information
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MDC_OKR-T/1.5-W12-C.A03 Page 2 of 16



Murata OKR-T-1.5-W12-C
OKR-T/1.5-W12-C
Adjustable Output 1.5-Amp SIP-mount DC/DC Converters
FUNCTIONAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Conditions
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous
Full power operation
0
15 Vdc
Input Reverse Polarity
None, install external fuse
None Vdc
On/Off Remote Control
Power on or off, referred to -Vin
0
14 Vdc
Output Power
0 7.5 7.65 W
Output Current
Current-limited, no damage, short-circuit protected
0
1.5 A
Storage Temperature Range
Vin = Zero (no power)
-55
125 °C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifications Table is not implied or recommended.
INPUT
Operating voltage range
Vin≥Vout+2V for 3.3V and 5V
4.5
12
14 Vdc
Recommended External Fuse
Fast blow
3A
Turn On/Start-up threshold
Rising input voltage
3.9 4.2 4.4 Vdc
Turn Off/Undervoltage lockout 15
Falling input voltage
3 3.4 3.7 Vdc
Reverse Polarity Protection
None, install external fuse
None Vdc
Internal Filter Type
C-TYPE
Input current
Full Load Conditions
Vin = nominal (5Vo set)
0.672
0.701
A
Low Line
Vin @ min, 5 Vout
1.122
1.163
A
Inrush Transient
0.4 A2-Sec.
Short Circuit Input Current
60 mA
No Load Input Current
5Vout, Iout @ 0
80 100 mA
No Load Input Current
0.59V, Iout @ 0
40 55
Shut-Down Mode Input Current
5 mA
Reflected (back) ripple current
Measured at input with specified filter
20 mA, pk-pk
GENERAL and SAFETY
@ Vin nom, 5Vout
91 93
%
@ Vin min, 5Vout
94 95.5
%
@ Vin nom, 3.3Vout
88.5 90
%
Efficiency
@ Vin nom, 2.5Vout
@Vin nom, 1.8Vout
86 88
82.5 84.5
%
%
@Vin nom, 1.5Vout
80 82.5
%
@Vin nom, 1.2Vout
77 79
%
@Vin nom, 1Vout
74 76
%
Safety
Certified to UL-60950-1, IEC/EN60950-1,
2nd Edition
Yes
Calculated MTBF
Per Telcordia SR332, issue 1, class 3, ground
fixed, Tambient=+25°C
10.7
Hours x 106
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
600 KHz
Startup Time
Power On to Vout regulated
(100% resistive load)
6 mS
Startup Time
Remote ON to 10% Vout (50% resistive load)
6 8 mS
Dynamic Load Response
50-100-50% load step, settling time to within
±2% of Vout di/dt = 2.5 A/μSec
50 100 μSec
Dynamic Load Peak Deviation
same as above
100 200 mV
FEATURES and OPTIONS
Remote On/Off Control
“P” suffix: a 49.2KΩ pulldown to ground needed.
Positive Logic, ON state
Pin open=ON
2
+Vin V
Positive Logic, OFF state
0 0.2 V
Control Current
open collector/drain
1 mA
www.murata-ps.com/support
MDC_OKR-T/1.5-W12-C.A03 Page 3 of 16







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